Software Alternatives & Startups

Filestack VS Postproxy

Compare Filestack VS Postproxy and see what are their differences

Filestack

Simple file uploader and robust APIs for uploading, transforming, and delivering any file into your app. Filestack is a collection of tools and powerful APIs that make it simple to upload, transform, and deliver content.

Rating
5.0 · 1 review
Pricing
Open source Paid $69 / Monthly
Postproxy

Postproxy is a unified API to publish, manage comments, direct messages, and reviews across Instagram, TikTok, LinkedIn, X, YouTube, Facebook, Threads, Bluesky, and more.

Rating
0 reviews
Pricing
Freemium $12 / Monthly (Starter, 10 Profile Groups, 120 Posts/mo)
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Filestack seems to be more popular. It has been mentioned 6 times since March 2021.

social mentions
6 vs 0
Digital Asset Management popularity
100% vs 0%
alternatives listed
172 vs 43

Base details

Website, pricing, platforms and company facts side by side.

Filestack
Postproxy
Website filestack.com postproxy.dev
Pricing
Open source Paid $69 / Monthly Official pricing
Freemium $12 / Monthly (Starter, 10 Profile Groups, 120 Posts/mo) Official pricing
Platforms
Cloud Windows Linux
—
Company 2012 Startup from Germany · 1 - 9 employees · 2026
Listed in

About Filestack and Postproxy

In their own words, as submitted to SaaSHub.

Filestack
Postproxy

Filestack is a cloud-based file management platform that provides tools for uploading, transforming, and delivering files in web, mobile, and desktop applications. Its features include a picker UI, which allows users to upload files from their local computers and various external sources, and the...

Read more about Filestack

Postproxy is a social media API for products that need more than publishing. Publish posts, manage comments, DMs and reviews, track post and profile analytics, and receive webhooks across major platforms. Built for SaaS products, automation workflows, and agents that need reliable social media...

Read more about Postproxy

Features and specs

What each product offers, as listed by its team.

Filestack 7 features
Postproxy 4 features
  • CDN
  • File Converter
  • Machine Learning
  • Workflows
  • API-friendly
  • Video and Audio Processing
  • Supported SDKs
    6
  • Ease of Integration
    Postproxy offers a user-friendly API design that makes integration with existing applications straightforward and efficient.
  • Scalability
    The service is built to handle high volumes of requests, making it suitable for businesses expecting to scale operations.
  • Enhanced Security
    Postproxy provides robust security features such as encryption and IP whitelisting, ensuring data transmitted is secure.
  • Comprehensive Documentation
    The platform offers detailed, well-organized documentation that helps developers troubleshoot and implement solutions quickly.

Possible disadvantages

  • Cost
    Postproxy may be relatively expensive for smaller companies or projects with limited budgets, depending on the pricing plans offered.
  • Dependency on Third-Party
    Relying on a third-party service means that any downtime or service issues with Postproxy directly affect your own service reliability.
  • Feature Limitations
    Some advanced features that certain users might require could be missing or limited in lower-tier plans, necessitating a higher cost for full access.
  • Learning Curve
    Even with good documentation, there might be a learning curve for teams unfamiliar with such services, requiring time and resources to get up to speed.

Analysis

An editorial look at what each product does well and who it suits.

Filestack
Postproxy

Overall verdict

  • Filestack is generally considered a good choice for businesses and developers in need of comprehensive file management solutions. Its ease of use, scalability, and rich feature set make it a strong contender in the file handling space.

Why this product is good

  • Filestack is known for its robust API and user-friendly interface, which simplify file uploading, processing, and delivery. It offers extensive integrations with various platforms and supports numerous file types and transformations, making it a versatile choice for developers and businesses. The platform's security features and reliable infrastructure are also highly praised, ensuring secure and efficient file management.

Recommended for

  • Developers who need a reliable file upload and processing service.
  • Businesses looking to integrate file handling capabilities without building from scratch.
  • Organizations that require secure and efficient file management tools.
  • Teams that need to support a wide variety of file types and transformations.

Overall verdict

  • I don't have reliable information about Postproxy (postproxy.dev) in my knowledge base, so I can't give you a verified assessment of whether it's good. I'd recommend evaluating it directly against your own requirements before committing.

Why this product is good

  • The service appears to be a proxy-related developer tool based on its name and domain, which could be useful for API request handling, testing, or routing
  • A dedicated '.dev' domain suggests it targets developers, which often means a focus on developer experience and integration
  • Proxy tools in general can help with tasks like request inspection, mocking, rate limiting, and debugging
  • Without verified reviews or documentation, you should check its official docs, pricing, uptime/SLA claims, and community feedback before relying on it

Recommended for

  • Developers who need a quick proxy or request-routing solution and are willing to trial the tool first
  • Teams evaluating lightweight API proxying, mocking, or debugging tools
  • Users who prioritize doing their own due diligence via official documentation and independent reviews before adopting a service

Videos

Walkthroughs and reviews on video.

Filestack 6 videos + Add
Postproxy 1 video + Add

Filestack Tutorial Series: Basic Filestack Setup

More videos

  • - Filestack Tutorial Series: Filestack Info
  • - Filestack Tutorial Series: Dropbox Integration
  • - Filestack Review: My Honest Experience with This Cloud File Handling Tool
  • - Filestack Guest Series: How Filestack Transformed My Development Process: A Review by CodeWithMasood
  • - Filestack File Storage Honest Review - Watch Before Using

Postproxy Walkthrough: Social Media API for Publishing, Comments & DMs

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Filestack
Postproxy
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
CDN
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Filestack and Postproxy.

What's the story behind your product?

Postproxy's answer:

We were building a product for ads creation at scale with fancy templates management, different platforms with adaptive sizing. Then Nano Banana got released and made a product largely obsolete. Postproxy was basically a part of that product.

Why should a person choose your product over its competitors?

Postproxy's answer:

Postproxy is a production-grade social media API for SaaS products, AI agents, and multi-tenant platforms. It provides one API for publishing, comments, direct messages, reviews, analytics, webhooks, and OAuth account connections across Instagram, Facebook, Threads, LinkedIn, TikTok, X, YouTube, Pinterest, Google Business Profile, Bluesky, and Telegram.

Compared with publishing-only APIs and automation tools, Postproxy is designed for customer-facing products that require official platform integrations, explicit delivery statuses, automatic retries, profile-group isolation, predictable pricing, and infrastructure built for production workloads.

What makes your product unique?

Postproxy's answer:

Postproxy combines production-grade publishing infrastructure, engagement, and analytics in one social media API. Every publishing request has an explicit status and human-readable failure reason, failed deliveries can be retried automatically, and the same platform also handles comments, direct messages, reviews, profile analytics, and webhooks.

Postproxy uses official platform APIs and OAuth flows, supports isolated profile groups for multi-tenant products, and provides integrations for n8n, Make, and Zapier, as well as an MCP server for AI agents.

How would you describe the primary audience of your product?

Postproxy's answer:

Postproxy is primarily built for developers and product teams creating SaaS platforms, AI agents, marketing tools, and multi-tenant social media products. It is also used by agencies and automation specialists that manage social accounts for multiple customers.

Individual creators can use Postproxy, but the platform is optimized for software products and production workflows rather than manual social media management.

User comments

Share your experience with using Filestack and Postproxy. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Filestack 5.0 · 1 review
Postproxy no reviews yet

We have no reviews of Postproxy yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Filestack 6 mentions
Postproxy 0 mentions
  • Generate Alt Text and Searchable Metadata from User Uploads with Filestack’s Caption API
    This guide walks through how to implement image captioning using Filestack’s file picker. You can try it yourself in the interactive demo below, then copy the code into your own project. - Source: dev.to / 11 months ago
  • Connect Any File Source to Your Upload Flow with Custom Source
    You’ve probably run into this situation before: your File Picker works fine with local uploads, Google Drive, and Dropbox, but your users need to pull files from somewhere else. Maybe it’s your company’s internal DAM, a headless CMS, or... - Source: dev.to / 11 months ago
  • The Art of Cleaning Files Before They Reach Your Server
    Building an application that accepts user content is a standard requirement today. Whether you are running a classroom management tool or a print-on-demand shop, you need to accept files. However, accepting a file in your file uploader... - Source: dev.to / 12 months ago

View more

Tracking Postproxy since Feb 2026.

Alternatives to Filestack and Postproxy

When comparing Filestack and Postproxy, you can also consider the following products.